D.$6,270 you just multiple
2x - 10 = 30
2x = 40
x = 20
Answer:
The call lasted 13 minutes
Step-by-step explanation:
In this question, we are told to find the number of minutes a call lasted.
The initial amount on the card is $30 and after making a phone call just once, the balance went down to $28.83
What was used would be 30 - 28.83 = $1.17 or simply 117 cents
Now these long calls come at a cost of 9 cents per minute and we have a total of 117 cents here; the number of minutes is thus 117/9 = 13
This means Kala spent 13 minutes on the call
Answer: $10
Step-by-step explanation:
Make sure they have common denominators.
-2/3 x (2/2) = -4/6
-4/6 + -4/6 = -8/6
-8/6 = - 1 2/6
-1 2/6 or -1 1/3 simplified, is your answer
hope this helps